<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>添加商品</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
      <!-- 用户提示区域 -->
      <el-alert
        title="添加商品信息"
        type="info"
        center
        show-icon
        :closable="false"
      >
      </el-alert>
      <!-- 步骤提示区域 -->
      <el-steps
        align-center
        :space="200"
        :active="activeIndex - 0"
        finish-status="success"
      >
        <el-step title="基本信息"></el-step>
        <el-step title="商品参数"></el-step>
        <el-step title="商品属性"></el-step>
        <el-step title="商品图片"></el-step>
        <el-step title="商品内容"></el-step>
        <el-step title="完成"></el-step>
      </el-steps>
      <!-- tab栏 -->
      <el-form
        :model="addFrom"
        :rules="addFromrules"
        ref="addFromRef"
        label-width="100px"
        label-position="top"
      >
        <el-tabs
          v-model="activeIndex"
          :tab-position="'left'"
          :before-leave="beforeTabeLeave"
          @tab-click="tabeClick"
        >
          <el-tab-pane label="基本信息" name="0">
            <el-form-item label="商品名称" prop="goods_name">
              <el-input
                v-model="addFrom.goods_name"
                placeholder="请输入商品名称"
              ></el-input>
            </el-form-item>
            <el-form-item label="商品价格" prop="goods_price">
              <el-input
                v-model="addFrom.goods_price"
                type="number"
                placeholder="请输入商品价格"
              ></el-input>
            </el-form-item>
            <el-form-item label="商品重量" prop="goods_weight">
              <el-input
                v-model="addFrom.goods_weight"
                type="number"
                placeholder="请输入商品重量"
              ></el-input>
            </el-form-item>
            <el-form-item label="商品数量" prop="goods_number">
              <el-input
                v-model="addFrom.goods_number"
                type="number"
                placeholder="请输入商品数量"
              ></el-input>
            </el-form-item>
            <el-form-item label="商品分类" prop="goods_cat">
              <el-cascader
                expand-trigger="hover"
                v-model="addFrom.goods_cat"
                :options="CateList"
                :props="CateProps"
                @change="handleChange"
              ></el-cascader>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品参数" name="1">
            <!-- 渲染表单动态参数 -->
            <el-form-item
              :label="item.attr_name"
              v-for="item in manyTableData"
              :key="item.attr_id"
            >
              <!-- 复选框组 -->
              <el-checkbox-group v-model="item.attr_vals">
                <el-checkbox
                  border
                  :label="cb"
                  v-for="(cb, i) in item.attr_vals"
                  :key="i"
                ></el-checkbox>
              </el-checkbox-group>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品属性" name="2">
            <el-form-item
              :label="item.attr_name"
              v-for="item in onlyTableData"
              :key="item.attr_id"
            >
              <el-input v-model="item.attr_vals"> </el-input>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品图片" name="3">
            <el-upload
              :action="uploadUrl"
              :on-preview="handlePreview"
              :on-remove="handleRemove"
              list-type="picture"
              :headers="headersobj"
              :on-success="handsuccess"
            >
              <el-button size="small" type="primary">点击上传</el-button>
            </el-upload>
          </el-tab-pane>
          <el-tab-pane label="商品内容" name="4">
            <!-- 富文本编辑器 -->
            <quill-editor v-model="addFrom.goods_introduce">
            </quill-editor>
            <!-- 添加商品按钮 -->
            <el-button type="primary" class="btaadd" @click="Add">添加商品</el-button>
            </el-tab-pane>
        </el-tabs>
      </el-form>
    </el-card>
    <!-- 图片预览 -->
    <el-dialog
      title="图片预览"
      :visible.sync="previwdialogVisible"
      width="50%"
    >
      <img :src="previewPath" alt="" class="prviewclass">
      
    </el-dialog>
  </div>
</template>
<script>
import _ from 'lodash'

export default {
  data() {
    return {
      activeIndex: '0',
      //添加表单数据对象
      addFrom: {
        goods_name: '',
        goods_price: 0,
        goods_weight: 0,
        goods_number: 0,
        goods_cat: [],
        //图片数组
        pics: [],
        goods_introduce:'',
        attrs: [],
      },
      previwdialogVisible:false,
      //表单数据验证规则
      addFromrules: {
        goods_name: [
          { required: true, message: '请输入商品名称', trigger: 'blur' },
        ],
        goods_price: [
          { required: true, message: '请输入商品价格', trigger: 'blur' },
        ],
        goods_weight: [
          { required: true, message: '请输入商品重量', trigger: 'blur' },
        ],
        goods_number: [
          { required: true, message: '请输入商品数量', trigger: 'blur' },
        ],
        goods_cat: [
          { required: true, message: '请输入商品数量', trigger: 'blur' },
        ],
      },
      //获取的分类数据内容
      CateList: [],
      CateProps: {
        label: 'cat_name',
        value: 'cat_id',
        children: 'children',
      },
      //动态参数列表数据
      manyTableData: [],
      //静态参数列表数据
      onlyTableData: [],
      //请求上传图片地址
      uploadUrl: 'http://127.0.0.1:8888/api/private/v1/upload',
      //图片上传组件请求
      headersobj: {
        Authorization: window.sessionStorage.getItem('token'),
      },
      previewPath: '',
    }
  },
  computed: {
    cateid() {
      if (this.addFrom.goods_cat.length === 3) {
        return this.addFrom.goods_cat[2]
      }
      return null
    },
  },
  created() {
    this.getCateList()
  },
  methods: {
    //获取分类数据
    async getCateList() {
      const { data: res } = await this.$http.get('categories')
      if (res.meta.status !== 200) {
        return this.$message.error('获取分类数据列表失败')
      }
      this.CateList = res.data
      console.log(this.CateList)
    },
    handleChange() {
      if (this.addFrom.goods_cat.length !== 3) {
        this.addFrom.goods_cat = []
      }
    },
    beforeTabeLeave(activename, oldactive) {
      if (this.addFrom.goods_cat.length !== 3 && oldactive === '0') {
        this.$message.error('请选择商品三级分类')
        return false
      }
    },
    async tabeClick() {
      //证明访问动态参数面板
      if (this.activeIndex === '1') {
        const { data: res } = await this.$http.get(
          `categories/${this.cateid}/attributes`,
          { params: { sel: 'many' } }
        )
        if (res.meta.status !== 200) {
          return this.$message.error('获取动态数据失败')
        }
        console.log(res.data)
        res.data.forEach((item) => {
          item.attr_vals =
            item.attr_vals.length === 0 ? [] : item.attr_vals.split(' ')
        })
        this.manyTableData = res.data
      }
      if (this.activeIndex === '2') {
        const { data: res } = await this.$http.get(
          `categories/${this.cateid}/attributes`,
          { params: { sel: 'only' } }
        )
        if (res.meta.status !== 200) {
          return this.$message.error('获取静态数据失败')
        }
        console.log(res.data)
        this.onlyTableData = res.data
      }
    },
    //点击预览图片
    handlePreview(file) {
      this.previewPath = file.response.data.url
      this.previwdialogVisible = true
    },
    //点击删除图片事件
    handleRemove(file) {
      console.log(file)
      const filePath = file.response.data.tmp_path
      const i = this.addFrom.pics.findIndex((x) => x.pic === filePath)
      this.addFrom.pics.splice(i, 1)
      console.log(this.addFrom)
    },
    //监听图片上传成功
    handsuccess(response) {
      console.log(response)
      const picInfo = { pic: response.data.tmp_path }
      this.addFrom.pics.push(picInfo)
      console.log(this.addFrom)
    },
    Add(){
      this.$refs.addFromRef.validate(async valid =>{
        if(!valid){
          return this.$message.error('请填写必要的表单项')
        }
        //执行添加逻辑
        // lodash clonDeep(obj)
       const form=_.cloneDeep(this.addFrom)
        form.goods_cat = form.goods_cat.join(',')
        //处理动态参数
        this.manyTableData.forEach(item=>{
          const newInfo = {
            attr_id:item.attr_id,
            attr_value:item.attr_vals.join(' ')
          }
          this.addFrom.attrs.push(newInfo)
        })
        //处理静态属性
         this.onlyTableData.forEach(item=>{
          const newInfo = {
            attr_id:item.attr_id,
            attr_value:item.attr_vals
          }
          this.addFrom.attrs.push(newInfo)
        })
        form.attrs=this.addFrom.attrs
        console.log(form)
        // 发起请求添加商品
        // 商品名称必须是唯一的
        const { data: res } = await this.$http.post('goods', form)
        if (res.meta.status !== 201) {
          return this.$message.error('添加商品失败！')
        }
        this.$message.success('添加商品成功!')
        this.$router.push('/goods')
        
      })
    }
  },
}
</script>
<style lang="less" scoped>
.el-checkbox {
  margin: 0 10px 0 0 !important;
}
.prviewclass{
  width: 100%;
}
.btaadd{
  margin-top: 10px;
}
</style>